Pulverizer.



C. A. DREISBACH.

PULVERIZER. APPucATloN FILED Nov. 26. 1915.

Patented A110". 28, 1917.

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'f verdor C. A. DREISBACH.

PULVERIAZER.

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C. A. DHEISBACH.

PULVERIZER.

APPLICATION HLED Nov. 26. |915.

Patented Aug. 28, 1917.

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s Ar. nnnrsacn, or NEW HAVEN, cormncrrcur.

PULVERIZEB. I

nascar.

Specification of etters Patent.

Patented Aug. 2.8, 1917.

Application Bled November 26, 1915. Serial No. 68,872.

crush slag cinders so as to separate the metal therefrom.

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It is the object of my invention, among other things, to produce anapparatus of this character wherein the water within the barrel may bedischarged from the side thereof rather than through perforations in itsperiphery, as has heretofore been the practice; to mount the upper ofthe crushing rolls so that it may have great ease of movement andflexibility; and in other ways to materiall .improve the pulverizingdevices hereto ore made.

To these, and other ends, my invention consists in the pulverizer havingcertain details of construction and combinations of parts, as will behereinafter described and more particularly pointed out in the claims.

Referring to the drawings, in which like numerals of reference designatelike parts in the several figures;

Figure 1 isa front elevation, partly in section, of an apparatusembodying one form in which my invention may be constructed;

Fig. 2 is an end view thereof, taken upon line af-b of Fig. 1;

Fig. 3 is a sectional elevation thereof, taken upon line c-d of Fig. 1;

Fig. 4 is a fragmentary end elevation looking toward the right of Fig.1;

Fig. 5 is a sectional view vof the drum, taken upon line e-f of Fig. 3;and

Fig. 6 is a fragmentary view of the settling tank and the over-flowtrough connected therewith. f

Heretofore the barrel or drum has been provided with a plurality ofopenings in its outer shell through which the water enters the barrel,but in some classes of work this is objectionable, because the holesbecome clogged and the water does not enter the barrel in sufficientquantities to do effective work, and again, the upper of the crushingrolls has been so mounted that it moves in substantially a straight lineand thereafter does not bear with equal pressure upon the lower crushingroll at all times. I have obviated bothof these disadvantages 1n thisinventionby providing means for supplying the barrelwith water withoutadmlttrng it through apertures in the outer shell thereof, and also bymaking the upper of the crushing rolls more flexible in its aca tion,and so mounted that it always bears with equal pressure uponthe lowercrushmg roll.

In the practice of my invention I prov ide a pairof substantiallyparallel uprlghts 1%1, to which is attached a circular head plate 2,which forms a stationary end for the barrel. The barrel 3 has uponopposite ends thereof the external annular anges 4 and 5, which are infrictional contact withf the rollers 6 that are journaled in theadjustable bearings 7. A shaft 8 is rotatably mounted in the head plates2, and fixed thereon is a crushing roll 9. Upon the outer end of thisshaft is a gear wheel 10, the teeth of which mesh into those of thepinion 1l fixed on the shaft 12. Fast and loose pulleys 13 are fixed onthis latter shaft and thereby provide convenient means for rotating allof said shafts and the crushing roll 9 through the middle of a plate, asis common in the art. An auxiliary shaft 15 is rotatably mounted in abracket 14. attached to one of the frames 1 and fixed thereon is asprocket wheel 16, which is operativel connected with a sprocket pinion17 upon the shaft 8 by the chain 18. Also fixed upon the shaft 15 is apinion 19, shown by dotted lines in Fig. 2, both of which mesh intothose of the internal gear 20 on the flange 5. l

By the means above described the barrel 3 is rotated and the crushingroll 9 at one and the same time, and through the action of the shaft 8.

A second crushing roll 21 is fixed upon the shaft 22 journaled in theyoke 23 that is movably mounted upon the shaft 24. journaled at itsopposite ends in the brackets 25. These brackets are fixed upon theinner faces of the plates 2. This second crushing roll 21 bears bygravity against the roll'9 and through its pivot mounting is movedtoward and away from the roll 9, its relative position depending uponthe quantity of material passing therebetween.

In one of the plates 2 is an opening 26, l

through which the slag cinder is fed into the barrel and for conveniencein deliverin the cinders into the barrel, I have provided a feed chute27 that is pivoted to one of the head plates 2 at 28 and is secured inthis position byna latch 29 on the spindle 30, which engages a lug 31upon the chute.

The cinder as it falls into the barrel is deected byfthe guard 47 andaccumulates upon the bottom of the barrel. It is then carried upwardlyby the pallets Y32, which discharge the cinder by gravity upon an apron33, which ismounted upon said spindle 30 and guides the cinder betweenthe crushing rolls 9 and 21. After passing between the rolls the crushedcinder drops onto the bottom of the barrel and is again carried up bythe pallets and recrushed, which operations are repeated until thecontents of the barrel are discharged by means hereafter described. L

A water trough 34 is arranged so that the drum rotates therein andadjacent thereto is a settling tank 35r connected with the trough 34 bya spillway 36, over which the water flows fromsaid settlin tank intosaid trough. Within the barre between the outer walls thereof and theinner walls38 are a plurality of inner chambers 37, which are radiallyseparated from each otherfby partitions 39. During the rotation of saidbarrel water is admitted into the chambers 37 from the trough 34,throughthe openings 40 in the outside of the barrel and is dischargedinto the barrel through the openings 41 upon the inside? of the barrel.When the water in the barrel arrives at the level of the openings 48 inthe plate 2,see Fig. 3, it overiows onto the spout 43 and is dischargedinto the settling tank 35, from which it flows back into the watertrough over the spillway 36. By this method of water distribution thewater in the barrel is maintained at a level higher than that in thetrough, is being continually used and no new supply is required,therebproviding means for operating the device at the minimum expenditure forwater supply. Afterpassing between the rolls the light particles of thecinder mass by the action of the water in the barrel and by itsagitation are carried into the settling tank through the opening 48, andthe heavy particles, which contain the metal, sink to the bottom of thebavifel and are again carried up and passed bet e cessive crushingoperations.

As the cinders are always wet when presented to the rcrushing rolls,there is no dust in the operation of my device. It may be used, however,for dry grinding if desired, l use'I may provide a hole 46 in one of theheads 2 to receive a dust iue leadin yto a suitable exhaust device (notshown by means of which the dust is drawn en the` rolls, beingcontinually subjected to suc- Lasalle 0H. After the cinder has beensufficiently ground the barrel is emptied by swinging the apron 33through the manipulation of the handle 44 to the position shown bydotted lines in Fig. 3. In such position the material is deflected ontothe stationary chute 45 in the barrel and over which the apron 33normally lies. As the bottom of this chute is inclined downwardly thematerial slides onto the swinging chute 27, which is in thepositionshown by dotted lines in Fig. l, and thus forms a continuation of thechute 45.

Within reasonable limitations various modifications of my invention,aside from those herein suggested, may be adopted, and will readilsuggest themselves to any erson skille in the art. I would there orehave it understood, that I do not limit myself to the exact constructionherein shown and described, but claim all that falls fairly within thespirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent, isz- 1. In acrushing apparatus, the combination with a barrel; of a water trough,means for rotating said barrel so that a thereof passes through thewater in said ortion f water trough, and means'connected with water insaid trough whereby water `will enter said chambers from said trough andkwill be delivered intosaid barrel.

3. In a crushing a paratus, the combination with a barrel aving aplurality of chambers therein adjacent to its periphery, each of saidchambers having openings adjacent to the op osite ends thereof, the oening in one end being through the outsi e of said barrel and at theopposite end through the inside of said barrel; of a water trough, andmeans for rotating said barrel within said trough, so that the openingsinto said chambers through the outside thereof pass through the water insaid trough.

4, In a crushing apparatus, the combination with a barrel; of a watertrough, means for rotating said barrel in said trough so that water maybe takeny vup from said trough vand conveyed to the inside of saidbarrel and discharged therefrom at a level higher than the water in saidtrough.

5. In a crushing apparatus, the combinanaomi tion with a water trough;of a settling tank adjacent thereto and ha connection therewith, wherebywater in said settling tank will flow into said water trough, a barrel,means for rotating said barrel so that the periphery thereof passesthrough the water in said water trough, a discharge opening through oneside of said barrel between the periphery and the axis thereof, saiddischarge opening being at a oint in a plane higher than the Water insai trough,

and means connected with said barrel for taking water from said trough,dischar 'ng it into said barrel, and discharging it om said barrelthrough said discharge openn 15 In testimony whereof I have hereunto afixed my signature.

GEORGE E. l? l w Y FLORENCE H. MONK.

